It is never pleasant to notice an injector noise on your Mercedes Classe E. It is a noise that appears frequently, usually when you accelerate or your engine is idling. However, this sign may be linked to several sort of concerns with your automobile injectors. It may not be anything serious, but when a frequent noise shows up, you have to be sure. Especially since fixing your Mercedes Classe E’s injectors can be expensive. That’s why our team chose to compose this article content in order to support you see more clearly, learn about the different plausible failures and establish your trouble. To do this, we will first look at the normal running and usefulness of the injectors in your Mercedes Classe E, then at the plausible triggers from which an injector noise may come.
Purposes of the injectors
Injectors are a very significant part of the operation of your engine unit. They were introduced to the modern automobiles about 20 years ago. Before their introduction, more conventional carburettor-type intake systems were employed, which handled the intake of air and fuel into the engine cylinders. With the injectors, manufacturers now have the possibility, thanks to the injectors pump, to control electronically each stage of the intake process very precisely (quantity of fuel injected, air/fuel mixture) via the analysis of the data compiled from the various sensors equipping the automobile (engine temperature, acceleration level, engine speed, etc.). Their purpose is therefore to inject under high pressure a precise quantity of an air/fuel mixture at a perfect timing to get the best possible combustion in the cylinders.
The different triggers of a clicking or knocking noise caused by the injectors of your Mercedes Classe E
Finding out injector noises on your Mercedes Classe E may result from different sources, we will now concentrate on the potential triggers of these. Generally, the usual noise of a faulty injector is of the snap type. Here are the several origins of these noises and the solutions to be adopted to stop them. If you notice another clicking noise but it is not from your injectors, we encourage you to read this article content about clicking noise on Mercedes Classe E to find the reason.
The reasons for injector clicking or knocking noise Mercedes Classe E
A clicking or knocking noise from your injectors can be justified by different reasons. Indeed, the injectors of your Mercedes Classe E have three main tasks, to control the vaporisation of the fuel, i.e., to convert the liquid into “gas” during injection, to ease its combustion. Then, its objective is to manage the air/fuel dosage and at last the homogeneity of the mixture, always with the goal of improving combustion. If one of these three functions is altered, the main role of the injectors will be disrupted and this will lead to poor combustion. This bad combustion will be a violent explosion in the cylinders as a consequence of bad timing, or a bad quantity of mixture or finally an inhomogeneous mixture and will provoke thoses knocking or clicking noises on your Mercedes Classe E. The main reason of these concerns usually originates from a particle that gets into the injectors. The accuracy of the injector being in the nanometer range, any possible blockage will inevitably end up in a malfunction of the injector. If after verifying, this noise originates from another part of the engine of your Mercedes Classe E, have a look at this article content for more infos.
The end result of injector noise on Mercedes Classe E
Now that we have reviewed the several reasons for injector noise on your Mercedes Classe E, we will end by stating the possible end result of malfunctioning one or more of your injectors. Whether only one is blocked, or broken, or your entire fuel rail is involved, you cannot escape these side effects which can fairly quickly become severe….
First, you risk destroying your exhaust system in the long run, because the unburned fuel residues that will end up in your exhaust system can corrode the metal in it.
One of the most basic effects experienced by drivers is a serious loss of power. Indeed, if your engine is running on 3 out of 4 cylinders for example, you will inevitably have a loss of power
Finally, you risk deteriorating one of your pistons or your engine. Poor combustion will fairly quickly affect your cylinders or pistons and your engine may tighten.
Here are three little recommendations to limit the risks associated with your injectors and protect you from engine failure:
- Do not drive at the bottom of the tank, as you may absorb impurities
- Use quality fuel
- Think of swapping your diesel fuel filter regularly>
